this takes the current generated output from eolian for legacy code in
evas and adds it to the tree, then removes legacy references from the
corresponding eo files. in the case where the entire eo file was for
a legacy object, that eo file has been removed from the tree
ref T7724
Reviewed-by: Marcel Hollerbach <marcel-hollerbach@t-online.de>
Differential Revision: https://phab.enlightenment.org/D8107